Messages in this thread | | | From | David Laight <> | Subject | RE: [RFC PATCH] rseq: x86: implement abort-at-ip extension | Date | Fri, 7 Jan 2022 22:27:17 +0000 |
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> That being said, there might be an architecture agnostic alternative available. > On abort of a RSEQ_CS_FLAG_ABORT_AT_IP critical section, we could let the kernel > decrement/increment the stack pointer to make room for a pointer (depending if the > stack grows down or up). It would then store the abort-at-ip value at the top of > stack.
Stack redzone in a leaf function?
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